Find flights
Deals
When to book
FAQs & Tips
Airlines

€42 Find Cheap Flights to Portsmouth

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Portsmouth departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

Search hundreds of travel sites at once for deals on flights to Portsmouth

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap Flight Deals to Portsmouth

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to Portsmouth that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals to Portsmouth

Recommended return deals departing in the coming months from the most popular airlines that fly to Portsmouth.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
07:00 - 08:40DUB-SOU
1h 40mdirect
20:00 - 21:35SOU-DUB
1h 35mdirect
€94Aer Lingus
Find Deal
Do, 24 Apr - Mo, 28 Apr
06:25 - 08:05DUB-SOU
1h 40mdirect
20:00 - 21:35SOU-DUB
1h 35mdirect
€102Aer Lingus
Find Deal
Mi, 16 Apr - Mi, 16 Apr
07:00 - 08:40DUB-SOU
1h 40mdirect
20:00 - 21:35SOU-DUB
1h 35mdirect
€105Aer Lingus
Find Deal
Do, 24 Apr - Mo, 28 Apr
07:00 - 08:40DUB-SOU
1h 40mdirect
12:25 - 23:35SOU-DUB
11h 10m1 stop
€117
Find Deal
Do, 24 Apr - Di, 29 Apr
07:00 - 08:40DUB-SOU
1h 40mdirect
15:25 - 22:50SOU-DUB
7h 25m1 stop
€120
Find Deal
Do, 24 Apr - Mo, 28 Apr
20:45 - 08:45DUB-SOU
12h 00m1 stop
09:20 - 16:40SOU-DUB
7h 20m1 stop
€203KLM
Find Deal
Mi, 18 Jun - Di, 24 Jun
20:45 - 08:45DUB-SOU
12h 00m1 stop
09:20 - 20:15SOU-DUB
10h 55m1 stop
€205KLM
Find Deal
Do, 24 Apr - Mo, 28 Apr
17:50 - 19:30DUB-SOU
1h 40mdirect
20:00 - 21:35SOU-DUB
1h 35mdirect
€271British Airways
Find Deal
Do, 24 Apr - Mo, 28 Apr
17:50 - 19:30DUB-SOU
1h 40mdirect
17:15 - 18:50SOU-DUB
1h 35mdirect
€292British Airways
Find Deal
Do, 3 Jul - Mo, 7 Jul
12:45 - 18:35DUB-SOU
5h 50m1 stop
19:50 - 12:00SOU-DUB
16h 10m1 stop
€358Aurigny Air
Find Deal
Do, 3 Jul - Mo, 7 Jul

Good to know – Book Cheap Portsmouth Plane Tickets

Low season

January

High season

June

Cheapest flight

€42
Best time to beat the crowds (27% less expensive on average)
Most popular time to fly (47% more expensive on average)
Flight from Dublin to Southampton

FAQs - booking Portsmouth flights

  • How long is the flight to Portsmouth?

    Flights from Dublin1h 38m

  • How to fly to Portsmouth?

    You cannot fly directly to Portsmouth. KAYAK recommends you fly to Southampton Eastleigh (SOU) (23.61 km from Portsmouth). From there you can hire a car or take a taxi.

  • What airports are near Portsmouth?

    The closest airport is Southampton Eastleigh (SOU) (23.61 km). Other nearby airports are London Gatwick (LGW) (73.89 km), London Heathrow (LHR) (84.73 km) or London All airports (LON) (101.61 km). KAYAK recommends you fly to Southampton Eastleigh.

  • How far is Southampton Eastleigh Airport from central Southampton?

    The city centre of Southampton is 6 km from Southampton.

  • What is the name of Southampton’s airport?

    When flying to Southampton, you'll arrive at Southampton Eastleigh Airport (SOU). The airport is also known as Eastleigh or Southampton.

  • How does KAYAK find such low prices on flights to Portsmouth?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Portsmouth.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Portsmouth?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portsmouth is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Portsmouth?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portsmouth with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Portsmouth?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portsmouth up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Portsmouth

  • There is no major airport in Portsmouth,it is instead served by London's airports. We recommend you fly to London Heathrow Airport Airport, however you can also fly to London Gatwick Airport airport, London City Airport airport, London Luton Airport airport, London Stansted Airport airport or London Southend Airport airport.
  • Looking for cheap airfare to Portsmouth? 25% of our users found return tickets to Portsmouth for the following prices or less: From Dublin €124
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly from Ireland is December.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Portsmouth flight deals.
See more tips

Top airline flying to Portsmouth

Need help choosing which airline to fly with from Ireland to Portsmouth? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
Aer LingusOverall score based on 1063 reviews
7.2Boarding
6.4Food
7.9Crew
7.0Comfort
6.7Entertainment
Airline reviews

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

10.0 ExcellentRALPH, Feb 2025BOS - TPA
Read more Aer Lingus reviews

Gate agents kind of serious. Had to wait til arriving at gate to choose seats. Thankfully they did give us seats together! And grateful the honored our age, giving us seats at the front.

Very polite and helpful staff. Jet blue…ok, but not as helpful!..

Seat was very uncomfortable. The worst in all of my travels. It sagged in the middle, worse than anything any airline can offer. Not flying aer lingus again.

This flight was delayed and caused me to miss my connecting flight from New York to Boston. I had to rent a car and drive myself home to avoid waiting another 5 hours in the airport.

They couldn't do through check-in for us. They took 2 hours to issue just one leg of the boarding pass. They had no idea to handle the case of passengers who travels to USA via Dublin airport. we had tough time time Dublin airport as boarding pass for the US flight was not pre-issued. Hope Aer Lingus will learn to handle such cases which they couldn't learn in in the past 50 years of the service.

There was a very drunk and disruptive passenger who was on the plane, right behind me. He was already drunk before boarding but was still let on the plane. He kept kicking and hitting the back of my chair the entire flight. It was an early morning flight and had zero rest on that leg

Really lovely trip and flight. The flight staff were so accommodating and warm throughout!

Friendly crew who apologised and explained reason for delay. Good on board service. Rather cramped seating. Late departure.

Very sad, couldn't stop crying. Was an hour delay in Ireland and when we got to Canada the flight was boarded and couldn't get on. Was the last flight of the day. Now in a hotel waiting on a stand by.I have to got o work, so I'll go first available while my son stays in the hotel til one's available

Was not aware that Aer Lingus was like the cut-rate services in the states, with no food or beverage (other then 3.50 Euro coffee) and no screens for entertainment. Was a great flight, but not much in the way of services.

Everything you need to know for your flight to Portsmouth

Complete your trip to Portsmouth with a hotel stay or car hire

Car hire in Portsmouth
Hotels in Portsmouth
Last-minute flights

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.